Incorrect address details on bond loan statement not rectified by Nedbank

We bought our house and received a loan from Nedbank bond nr ***. Everytime since 2016 I have asked Nedbank homeloan department to change the address on the statement as it is not where the bond is, yet, my requests has been ignored! Which means we must own the place as stated on the address even though the address on the bond differs. Why is it so difficult for the department to correct THEIR mistake????? Surely some commonsense is needed to work at a financial institution. We do not stay at the said address as on the statement, which means that our mail is delivered to an incorrect address with our financial information on. What other confidential information is handed out by this institution?? Do your job and correct the address as on the bond.